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Embedded Software Solutions

Flasher RX

Flash Programmer for Renesas RX cores

Flasher RX is a programming tool for Renesas RX-based microcontrollers with on-chip or external flash memory. Flasher RX is designed for programming flash targets with the J-Flash software or stand-alone. In addition to that Flasher RX has all of the J-Link RX functionality. Flasher RX connects via Ethernet, USB or via RS232 interface to a PC, running Microsoft Windows 2000 or later (for a list of supported versions, please refer to the specifications below).

Flasher RX itself has a built-in 20-pin JTAG connector but is shipped with a 14-pin adapter for Renesas RX devices.


  • Stand-alone JTAG programmer (Once set up, Flasher can be controlled without the use of PC program)
  • Support for Renesas RX series CPUs. For a complete list, please click here
  • Supports internal and external flash devices
  • Free software updates1, 2 years of support
  • 64 MB memory for storage of target program
  • Serial in target programming supported
  • Data files can be updated via Ethernet/USB using J-Flash or via the mass storage functionality of Flasher RX
  • Target interface: JTAG
  • No power supply required, powered through USB
  • Can be used as J-Link (JTAG emulator) with a download speed (into RAM) of up to 720 Kbytes/second
  • Programming speed between 30-300 Kbytes/second depending on target hardware
  • ASCII command interface to control Flasher without the use of PC program
  • Authorised Flashing allows to limit the number of flash programming cycles and to protect the Flasher against non-authorized access in case of external production

Package content

Flasher RX is delivered with the following components:
Flasher STM8 RX 14-pin adapter incl. 14-pin flat ribbon cable Ethernet cable RS232 cable 1:1 female / male USB cable USB power supply


Supported OS Microsoft Windows 2000
Microsoft Windows XP
Microsoft Windows XP x64
Microsoft Windows 2003
Microsoft Windows 2003 x64
Microsoft Windows Vista
Microsoft Windows Vista x64
Microsoft Windows 7
Microsoft Windows 7 x64
Microsoft Windows 8
Microsoft Windows 8 x64
Microsoft Windows 10
Microsoft Windows 10 x64
Operating temperature +5°C ... +60°C
Storage temperature -20°C ... +65 °C
Relative humidity (non-condensing) Max. 90% rH
Size (without cables) 121mm x 66mm x 30mm
Weight (without cables) 119g
Available Interfaces
USB interface USB 2.0
Ethernet Host Interface 10/100 Mbit
RS232 Host interface RS232 9-pin
Target interface JTAG 20-pin (shipped with 14-pin adapter for Renesas RX)



For more information please contact the MicroWay sales team: buynow
Head Office
MicroWay Pty Ltd
PO Box 84,
Braeside, Victoria, 3195, Australia
Ph: 1300 553 313
Fax: 1300 132 709
email: sales@microway.com.au
ABN: 56 129 024 825
Sydney Sales Office
MicroWay Pty Ltd
PO Box 1733,
Crows Nest, NSW 1585, Australia
Tel: 1300 553 313
Fax: 1300 132 709
email: sales@microway.com.au
ABN: 56 129 024 825
New Zealand Sales Office
MicroWay Pty Ltd (NZ)
PO Box 912026
Victoria Street West
Auckland 1142, New Zealand
Tel: 0800 450 168
email: sales@microway.co.nz

International: call +61 3 9580 1333, fax +61 3 9580 8995

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